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Báo cáo lâm nghiệp: "Findings from the application of coal combustion by-products (CCB) for forest reclamation on spoil banks of the North Bohemian Brown Coal Basin"

Tham khảo luận văn - đề án 'báo cáo lâm nghiệp: "findings from the application of coal combustion by-products (ccb) for forest reclamation on spoil banks of the north bohemian brown coal basin"', luận văn - báo cáo phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | JOURNAL OF FOREST SCIENCE 55 2009 3 137-144 Findings from the application of coal combustion by-products CCB for forest reclamation on spoil banks of the North Bohemian Brown Coal Basin P. Cermák1 V. Ondrácek2 Research Institute for Soil and Water Conservation Prague Czech Republic 2North Bohemian Mines a. s. Chomutov Czech Republic ABSTRACT Coal combustion by-products stabilizate FDG gypsum generated by the thermal power station in Ledvice were tested on an above-level dump of the Bílina Mine in the North Bohemian Brown Coal Basin during the reclamation of its surface for forestry purposes. A part of the experimental object was treated with coal combustion byproducts at a dose of 700-1 000 t ha that were incorporated into the soil profile by very deep ploughing and the other part was left untreated for comparison. A one-year preparatory agrocycle was conducted on the entire experimental object - growing of Leucosinapis alba for green manuring and for reforestation bareroot and container-grown planting material was set out into dug holes Larix decidua L. Pinus nigra Arn. Pinus sylvestris L. Quercus robur L. Carpinus betulus L. Acer pseudoplatanus L. Acer platanoides L. Alnus glutinosa L. Gaertn. Fraxinus excelsior L. Tilia cor-data Mill. Betula verrucosa Ehrh. . The assessment of the experimental object at the age of 7 years indicated that as a result of the application of stabilizate and FDG gypsum there was an increase in porosity water-retaining capacity soil alkalinity and carbonate content the soil-forming process was characterized by a decrease in soil alkalinity whereas the high alkalinity of the soil horizon treated with this amendment did not negatively influence the growth vitality of most tree species taxa used for reforestation. Keywords spoil bank Anthroposols forest reclamation coal combustion by-products soil properties growth vitality root system Texturally heterogeneous substrates of the already coal seam with adverse chemical and physical .